Bumper for automobiles



Nov. 24 1925.

H. S. JANDUS ET AL BUMPER FOR AUTOMOBILES Filed Jan. 28, 1924 i Patented Nov. 24, 1925.

' To all whom it may concern:

UNITED STATES TION 0F PELAWARE.

. PATENT OFFICE. HERBERT S. JANDUS AND dREMER F. BRON'II OF DETROIT, MICHIGAN, ASSIGNORS TO THE C. G. SPRING & BUMPER COMPANY, OF

DETROIT, MICHIGAN, A CORPORA- BUMPER FOR AUTOMOBILES.

Application filed January 28, 1924. Serial No. 688,992.

Be it known that we, (1) HERBERT S. JAN- DUS and (2) CREMER F. BROWN, citizens of the United States, residing at (1) Detroit, in the county of WVayne and State of Michigan, and (2)' Detroit, in the county of Wayne and State of'Michigan, haveinvented a certain new and useful Improvement in Bumpers for Automobiles, of which the following is a full, clear, and exact description,

- reference being had to the accompanying drawings.

This invention relates to bumpers for automobiles and like vehicles, and has for its general object to provide a bumper which is particularly adapted to withstandand ab-- sorb severe impactswithout injury to the automobile and the occupants thereof. Further and more limited objects of the invention will appear in connection with the detailed description-of the same; and the objects of the invention will be realized generally in and'through the'combinations of elements set-forth in the claims hereof.

In the drawings forming part hereof, Fig. 1 represents a plan view 0 structedin accordance with our invention; Fig.2 a front elevation thereof; and Fig.

3 a view, similar to Fig. 1, of a modification of the invention.

' Describing the various parts by reference characters, 1 denotes a 'air of bumper-supporting arms. Each of these arms is connected by means. of a clamping device 2 and a pivot bolt 3' to a airiof bumper bars. The clamp is prefera 1y of the construction shown and described in the patent to Me- Gregor, Reissue No. 15,545, dated February 20,1923.

The bumper shown herein comprises a pairof front or impact bars 4', the said bars being vertically spaced and having rearwardly directed ends 4, each having an eye 4". j I

A rear or auxiliary bar is connected to and between the ends 4} of the frontor impact bars. This rear or auxiliary bar (Figs. 1 and 2) comprises a central or rearwardly bowed portion 5, and rearwardly extending end ortions 6, each having an eye 6, the eyes eing interposed between the eyes on the adjacent ends of the bars 4, and connected thereto by bolts 7. I

Int" posed between the bar 5, 6 and a bumper con- 4 jected between and secured to the central portions of the bars 4 by means of clamping plates 9 and rlvets 10.

The fourth'bar is a substantially fiat Vin shape, having out-' wardly and'rearwardly extending main portions 8 adapted to bear against the portions 6 of the rear or auxiliary bar andbeinge11- gaged by the clamps 2, the said clamps securing the parts 8 in contact with the parts 6.

In the operation of a bumperconstructed as described, if a severe blow is delivered to the lmpact section, especially between the arms 1, 1, the central portion of said bars will be bent backwardly, this action being resisted by the'fourth bar 8 -8". This bar checks the rearward movement of the bars 4, the parts, 8 sliding under friction through the clamps 2. If the blow is' of suflicient severity, when the bars 4: and 88" shall have been bent-backwardly into the zone of action of the part 5 of the auxiliary bar, a

further checking, action. of the rearward across the space-therebetween. The bumpr e in all other respects, the arts ers being ali of the bumper shown in Fig. 3 are esignated by the same references thatare a bumper in Figs. 1 and 2.

. plied tothe corresponding parts of the said Having thus described our invention, whati we claim is:---;

1..A bumper com'rising a pair of vertically spaced impact are, a rear or auxiliarybar connected to the. ends of theimpact bars and having its central portion spaced from said bars, a reinforcing bar inter osed be-' tween the impact and auxiliary are and having its central portion projecting toward and secured to the impact bars, said reinforcing bar havingbearing portions slidably engagingthe auxiliary bar, means for frictionally clamping the said portions of the reinforcing bar to the auxiliary bar, and means" for pivotally supporting the said bumper.

2. A bumper com rising a pair of vertically spaced impact Ears, a rear or auxiliary bar connected to the ends of the impact bars and having its central portion spaced from said bars, a reinforcing bar havingiits central'portion projected toward and secured to the impact bars, "said reinforcing bar having bearing portions slidably engaging the auxiliary bar, means for-frictionally clamping the said portions of the reinforcing bar to the auxiliary bar, and means including the said clamping means for pivotally supporting the bumper.

3/A. bumper com rising a pair of vertically spaced impact Ears, a rear or auxiliary bar connected tothe ends of the impact bars and having its central portion spaced from said bars, a reinforcing bar having its central portion secured to the impact bars, means for frictionally clamping the reinforcing bar 1 to the auxiliary bar, and means for pivotally supporting the bumper.

4. A bumper comprising a pair of vertically spaced impact bars, a rear or auxiliary bar connected to the ends of the impact bars and having its central portion spaced from such bars, a reinforcing bar interposed behaving its central portion ,projectin tween the impact and auxiliary bars and toward and secured to the impact bars, said reinforcing bar having bearing port-ions slidably engaging the auxiliary bar, a clamping device for securing in frictional engagement the interengaging portions of the auxiliary bar and of the rear bar, and a pivotal support for each of said clamping devices.

5. A bumper comprising a pair of vertically spaced impact bars, a rear or auxiliary bar connected ,to the ends of the impact bars and having its central portion spaced from such bars, a reinforcing bar interposed between the impact and auxiliary bars and having its central portion projecting toward and secured to the impact bars, said reinforcing bar having bearing portions slidably engaging the auxiliary bar, clamping devices .for securing in frictional engagement the interengaging portions of the reinforcing and auxiliary bars, each clamping device embracing such portions of the said bars and extending rearwardly therebeyond, and arms for supporting the bumper from the vehicle and each pivotally connected to the rearwardly extending portions of the said clamping. devices.

In testimony whereof, we hereunto afiix our signatures.

HERBERT S. JANDUS. CREMER F. BROWN. 

